Locomotive rod bearing seal



Feb. 24, 1942. R. E. HORGER 2,274,201

LocoMoTIvE non BEARING' SEAL Filed Jan. 2o, 1940 2 sheets-sheet 1 Feb.24, 1942. R. E. HORGER 2,274,201 v l Y LOCOMOTIVE ROD BEARING SEAL IFiled Jan. 20, 1940 2 Sheets-Sheet 2 (lq 15.//5 TTOPNEGI,

Petented Feb. 24, 1942 LocoMo'rrvE non BEARING SEAT.

Ralph E. Horger, Canton, Ohio, as'si'gnor to The Timken Roller BearingCompany, Ohio, a corporation of Ohio Canton,

Application January 20, 1940, Serial No. 314,776

4 Claims.

This invention relates to bearings, particularly locomotive rodbearings, and has for its principal object to improve the oil retainingend closure construction of the bearing shown in my 4copendingAapplication Serial No. 262,863, now Patent No. 2,241,350, issued May 6,1941. The invention consists in the parts and in the arrangements andcombinations of parts herein after described and claimed.

In the accompanying drawings, which formV part of this specification andwherein like symbols refer to like parts wherever they occur,

Fig. 1 is a central horizontal section through a locomotive rodv bearingembodying my invention,

Fig. 2 is an enlarged fragmentary horizontal section through saidbearing in the region of the outermost end closure and the split lockingring therefor,

Fig. 3 is a section similar to Fig. 2, the section being taken throughthe split portion of said locking ring,

Fig. 4 is a fragmentary section similar to Fig.

l 2 in the region of the inner end closure and the split locking ringtherefor,

Fig. 5 is a cross-section on the line 5-'5 of Fig. 1,

Fig. 6 is a fragmentary outer end view of one of the locking rings andthe spreading device therefor,

Fig. 7 is a section on the line 7I'I in Fig; 6,

Fig. 8 is a section on the vline 8-8 in Fig. '1,

Fig. 9 is a fragmentary view of one of the spreading-block receivingends of said ring; and

Fig. 10 is a perspective view of one of the ring spreading or expandingblocks.

In Vthe accompanying drawings, my invention I is shown embodied in adouble taper locomotive rod bearing comprising` two cones or innerraceway members lI whose raceways taper towardeach other, caged circularseries or rows of ta-- pered rollers 2 for the raceways of therespective cones, and a single cup or outer raceway member 3 havingtapered raceways4 therein for the respective series of rollers. Theraceways of the Vcup 3 are depressed to form thrust shoulders 4- t on acrank pin 8 of a. main driving wheel 9 of "a locomotive, with a suitablespacing sleeve III mounted on said pin between said cones. The main rodII, front side rod `I2 and rear side rod I3 have their adjacent endsjournaled on the steel sleeve 6 of the single outer raceway member 4. Asuitable spacing sleeve I4 is mounted on the cup sleeve 6 between themain rod II land the front side rod I2, an externally gr'ooved outerabutment ring I5 is sleeved on theouter end of said cup sleeve adjacentto the outer face of the rear side rod I3 and an abutment ring I6 issleeved on'the cup between an for the large ends of the rollers andguide shouly ders 5 for the sniall end thereof. Av replaceable steelsleeve 6 having a hard outside diameter is presstted or shrunk on thecup 3. The outer end of the sleeve 6 is disposed ush with thecorresponding end of thecup 3 and the inner end ofl said sleeve abutsagainst anannular shoulder I provided therefor on said cup near theinner end thereof.

annular shoulder II thereon and the inner face of said front side rod.The double taper bearing, together with the rod ends and spacing sleeveI4 and abutment rings I5 and vI6 therefor are held on the crank pin 8 bythe eccentric crank I8 of the locomotiveevalve gear.

(not shown), said crank being rigidly secured to the outer end of saidcrank pin by means of a pin I9.

The annular space 'V20 between the inner and.

outer raceway members of the bearing is closed at the oute'rI and innerends thereof by means of end closure members 2| and 22, respectively.This annular space 2II is supplied with lubricant from an axialreservoir 23 in the crank pin 8 through radial passageways 24 thereinthat open into said space through radial holes 25 in the spacingsleeve'II) for theI cones or inner rac'eway members I of the bearing.

The outermost end closure member 2I comprises an annular plate having anoutwardly extending internally and externally grooved. hub 26thatclosely encircles a sleeve 21 that is pressfitted on the outer endof the outermost bearing cone andterminates at its inner end in anoutwardly extending oil flinger flange 28 and at its outer end in aninwardly extending stop ange 29. The oil flinger flange 28 of the sleeve21 is spaced inwardly of the end closure plate 2|, which has aprojecting annular4 rib. 30 on its inner face `that overhangs and isslightly spaced from the peripheral edge of said flinger flange; and thestop flange 29 of said sleeve overhangs and abut atwise against theouter end of the outermost cone and has two circumferentially spacedholes 3I extending, therethrough that are threaded to receive pullingscrewsI (not shown). An` annular plate 32 is disposed between the outerend ange'29 of the sleeve 21. and the eccentric crank I8 and has anf\The bearing cones I are mounted with a pressinwardly extending hubportion 33 that is sleeved on the crank pin 8 andts snugly in theopening blocks. end with a right hand thread and at the other Thisannular plate 32I is provided with an inwardly extending outerperipheralflange 34 thatA overlaps the outwardly extending hub portion 26 of theannular closure plate 2l. The annular plate 32 has two holes 35extending therethrough that are threaded to receive pulling screws (notshown) these holes being offset circumferentially with respect to theholes 3| in the stop flange 29 of the sleeve 21; and shims 36 areinterposed vbetween said annular plate and said stop iiange forobtaining proper adjustment of the bearings.

The outermostl end closure 2i vhas a beveled annular inner face 31 thatseats against a beveled valve type seat 38 provided therefor in the boreof the outer raceway member 3. Said end closure is held tightly againstits beveled seat or annular abutment shoulder 38 by means of a splitretaining and clamping ring 39 that seats within an annular groove 40provided therefor in the bore of the outer racewaymember outwardly ofsaid seat. The outer wall of the groove 40 and the face of the splitlock ring 39' cooperating therewith are inclined, as at 4i, in

the direction of the end closure so thatsexi 3 by means of a Ispreadingdevice comprising a pair of blocks 43 located between the spaced vendsof said ring and a screw 44 that is threaded into bores providedtherefor in the respective This spreading screw is provided at `one endwith a left hand thread, whereby said blocks are caused to move towardsor away from each other, depending on the direction in which the screwis operated. At the spaced ends of the split ring 39, the bottom of theinternalgroove 42 thereof terminates short of the side walls thereofforming a pair of spaced parallel lugs defined by the Iinner peripheryof said ange. an annular plate having aninwardly extending peripheralange 22a that nts within the bore of 'the outer raceway member 3 andterminates in a beveled end- 31a that seats against a beveled valve typeseat or abutment shoulder 38a formed in said bore. This closure 22 isheld to its seat by a split locking ring 39a, similar to the lockingring 39; that seats in a groove 40a similar to the groove 40, and isexpanded by blocks 43a similar to the blocks 43. Mounted in the angleshaped inner closure plate 22 is a suitable oil seal including acontinuous roll of leather or other flexible material 52 bonded to theshell 53 of said seal the innermost cone by means of a garterv typespring 54.

By'the arrangement described, the end closure plates are held by thesplit locking rings therefor tightly against their valve type seats inthe bore of the outer raceway member of the bearing and thus preventleakage of lubricant through the joints between said end closures andsaid outer raceway member; and the removable` rod abutment rings serveto prevent expansion or distortion of said outer raceway member when thesaid locking rings are forcibly expanded into theirgrooves. The externalperipheral grooves in the outermost abutment ring lightens the weightthereof and improve the appearance thereof, while the internal annulargrooves in the split locking rings not only reduce the weight thereofbut also increase their iiexibility and prevent permanent set thereof`when the rings are expanded into the grooves in the bore of the outerraceway member. When the locking rings are thus expanded against thebeveled walls of the grooves provided therefor in the bore of the outerraceway member, said rings are forced inwardly against the closures andthus cause them to seat tightly against the seats provided therefor inthe outer raceway member and thus prevent leakage of oil between thesaid closures and said outer raceway meml ber. At the Sametime, the oilinger and labyrinth effect of the sleeves and hub portion of theoutermost end closure andthe close tvof the flexible seal carried by theinnermost end or wings 45, between which are snugly received tongues46'formed on the remote ends of the respective blocks 43. These tonguesform shoulders 41 in the blocks that areconvexly curved and seat inconcave seats '48 provided therefor in the shoulder opposing ends of thewings 45 at the spaced ends of' said ring." The adjusting screw has itsmiddle portion 49 shaped to receive a wrench: and said middle portionand the portions of the split ring on opposite sides of saidv blocks areprovided with holes 49a and 50 adapted to receive a wire (not shown) forlocking the screw in the desired position of rotary adjustment.Thelocking ring is provided on opposite sides of the split therein withthreaded holes 5I adapted to be engaged by threaded pins (not f' shown)to facilitate drawing the ends of said ring together when it is mountedin and removed from the groove 40 in the outer raceway member 3. Theblocks 43 are self-centering in the concave seats 4 in the wings 4r atthe ends or-,

the split` locking ring 39 and are held in place by the central tongues46 that extend into the spaces .between said wings.

The innermost closure member 22 comprises closure prevent the escape ofoil from and the entry -of dust into the bearing space through thejoints between said end closures and the inner raceway members. The endclosures are entirely separate from the rod abutment rings,

wherebyV either of said rod abutment rings and end closures'may beremoved and replaced independently of the other.

The invention is not limited to the particular locomotive rod bearingconstruction shown and described.

What I claim is:

1. Closure means for the annular space be- 4tweenfrelatively rotatableinner and outer members comprising an annular end closure inter--thereof, said hub surrounding the adjacent end portion oi' said innermember, a sleeve pressfitted on said end portion of said inner memberand extendingl through said hub, said sleeve hav- `eralV edgeterminating ber and tween relatively -bers an'annularendekmreinterpeding an inwardly extending: stop ants outer fend overhangin'g andabutting 4endwise against the outer end face of said inner member; andan outstanding annular'ilange at its in ner end spaced inwardly'ofthefinner race of said closure with its peripheral edge.` terminatingcloseto but clear of said annularfrib,` and an annular member a` hub`portion supported inV the V opening defined by thei'nwardly flange atthe outer: end of'` saidsleeveand a peripheral.

flange encircling the hub of said'. end closure.` b 2. Closure meanslfory the annular space between relatively rotatable4 inner and outermembers comprising an annular endl` clomre--inter-` posed between saidAmembers' adjacent toons endy presstted on. said? end membery undythrough said hub,v said sleeve having` an,V inwardly relation to theouter` endl.

. wardly of. said inner face of' saidclosure with: its periph-` closeytobut clear or said annularrib, anv annularmember havingI a hubiittingintheopeningdelimedbyt-ueouterendl flangey of said sleeve and a.`

iusting'shims sleeved. on ot'said member and clamped said annularmemsaid outer endiianseot: said sleeve.

3. (Ilomxrev meansI for rotatable mier membetween of, said outer memberIhaving a in. ternal annular srooveand an intermu annular abutment forclosureinwardlyor said groove touneeidtliereV at: theA outer end:thereofy the annular .sluwel be;

holding said. end? closure.` against;` said abutmen said groove andring: continuous cooper* ating portionsy adapted to forcesaid ringagains said' closure when ringiszexpanded into saldi groove, said tring: having, a.` circumferentialv groove extending around-theinnerperiphervthereofmnd v means interposed?` between the ends or said splitring foi-expanding: the same into said smovethel side walls, ofv the:inner peripheral groove orsaid ring' being continued' beyond the bottomor said groove at' the ends oi'said` rings to tormpai o! spaced wings;said means comprising a pair of respectivelyy between said blockspositioned or wines and means for spreading) said blocks apart, saidblocks'` havingI arcuate shoulders at their remote ends, and the` endsoi' said wings having arcuate seats for the arcuate ends of therespectiveblocks;l

. 4.` Closure: means for;y the annular space betweenlrelativelyrotatable inner and outer membex-s comprising: an end closureinterholding sama end` olonne :mim: said' abutment;

, 35 circling the-hub tsaidclosurevand annular ad-y ring havingcontinuousk eoopex'-` adapted to forcevsaid ring against atingl portionssaidl ring is said; closure Y i* a a split'retaining mountedin saidsroovei'oi"`A

